Diffraction Gratings includes the following learning objectives:

  • Understand the derivation of n?=dsin? and recognise the relevance of path difference in the construction of maxima;
  • Recall and use n?=dsin?;
  • Understand a diffraction grating has the effect of creating sharper orders that are much further apart;
  • Appreciate the benefits of using diffraction gratings in interference experiments rather than double slits;
  • Describe techniques and procedures to determine the wavelength of light using diffraction gratings.

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